Reinforcement for concrete.



J. P. GOLDING. REINFORCEMENT FOR CONCRETE.

APBLIOATION FILED NOV. 27. 1908- 1,1'20,928. Patented Dec. 15,1914. 2SHEETS-SHEET 1 DIE 6, 7 .Fi l. 7 4 7 I I \L 1'0 f w 1 1 W 0 I I J. F.GOLDING. REINFORCEMENT FOR CONCRETE.

APPLICATION FILED NOV. 2'7. 1908.

Patented Dec. 15, 1914.

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JOHN F. GOLDING', OF WASHINGTON, DISTRICT OF COLUMBIA.

REINFORCEMENT FOR CONCRETE.

To all whom it may concern Be it known that I, JonnF. GOLDING, a citizenof the United States, residing at \Vashington, District of Columbia,have invented certain new and useful Improve ments in Reinforcement forConcrete,- of which the following is a specification.

The invention relates to bars for concrete reinforcement, to be usedsingly or connected with each other as may be desired.

In order to make the invention more clearly understood 1 have shown inthe accompanying drawings means for carrying it into practical effect,without limiting my improvements, in their useful applications, to theparticular constructions which, for the sake of example, are delineated.

In said drawings-Figure 1 is a side view of a deformed bar containingthose features of the invention which do not depend upon theconnectionof two or more bars. Fig. 2 is a plan view of the same.-

Fig. 3 is a sectional view on a larger scale on line III-HI of Fig. 1.Fig. l: is a perspective view of a supplemental. member adapted to becombined with the bars. Fig. 5 is a plan View, showing portions ofseveral bars connected. Fig. 6 is' a sectional view on line VI-VI ofFig. 5. Fig. 7 is a side view of another form of supplemental member.Fig. 8 is ahorizontal section showing the described bars assembled for acolumn reinforcement. Fig. 9 is a side View of a single bar havingsupplemental members for engagement with the concrete. Fig. 10 is aperspective view of another form of supplemental member. Fig. 11 is aperspective view of another form of supplemental or shear member.

Referring to the drawings, 1 is a bar,preferably rolled from steel, andformed with one or more longitudinal grooves 2 bordered by projectinglips 3. groove and lips are made relatively and respectively deep andoutwardly extended, and the lips rounded as shown to avoid in ducingcracks in the concrete. This bar is deformed transversely at suitableintervals by external recesses l. These recesses.present at each endshoulders 5, of such depth as may be desired, for engagement with theconcrete against longitudinal strains or slippage. The said shouldersmay be vertical or more or less inclined to the axis of the bar; and bypreference are formed principally or entirely in the extended lips thereSpecification of Letters Patent.

By preference the.

Patented Dec. is, rare.

Application filed November 27, 1908. Serial No. 46 1,58 1.

by leaving the-bar as a whole of full and unimpaired cross-section andstrength. A convenient and efficient manner of forming the recesses t.is by bending inward the lips 3, as shown at (5, either during theoperation of rolling the bar or by a subsequent rolling, pressingorswaging operation. The opposing lips may be bent into complete contact,or so as to leave between them a narrow opening or slit '5 leading intothe seat 8 behind the bent parts (3 of the lips. A pressing inward ofthe exterior parts of the lips, as indicated in the drawings, by a.direct acting press provided with suitable dies, gives to the interiorparts of the lips an inclination to a line or plane that is.

parallel with the bar, so that the seats thus formed within the lips aresufficiently conical or tapering to admit of the ends of thesupplemental member being forced or driven longitudinally into the seatsso as to wedge or fit within the same. To give greater extentof wedgingcontact or fitting the ends of the supplemental member may also be madetapering, though this last mentioned additional feature of formation isnot regarded as essential. as above described may be laid separatelyWithin the concrete mold or form, horizontally or in any other mannerdesired, and

the concrete filled in according to the usual practice.

I also provide for connecting the bars, when desired, to form acontinuous flat web or fabric for slab or other work. By the same orequivalent means the bars, arranged vertically, may be connected onewith another to form the reintorcement of a square, polygonal or roundcolumn.

The connecting means consist of supplemental members 9 having enlargedheads 10, which latter are adapted to he slid along the grooves andenter or be driven within the seats 8 so as to obtain a strong conned.

tion with the'bars. The supplemental members may be of plain double bookform, as shown in Fig. 7; but are preferably of the shape shown in Fig.4 the head 10 of which may wedge in the seat 8 while the shank 11 passesout through the slit 7.

An assemblage of the described bars to form a column reinforcement isindicated in Fig. 8. the bars in a polygonal or circular arrangementbeing connected with each other by the supplemental members.

The bar may, if esired, be used uncon- The bars constructed more tightlyinto the seats.

nected with another bar but With a series of supplemental members totake the shear strains of the concrete. Such a single bar is shown inFig. 9. The supplemental mem- 5 bers may be of loop form as indicated at,5 the shanks 11 may be formed with a bend it at one or both ends, or-atany suitable point, as shown in Fig. 8.

What I claim is:

1. A deformed bar for the reinforcement of concrete, formed with deeplongitudinal grooves and rounded lips at its sides, and having the saidlips bent inward at intervals, combined with a supplemental mem herhaving its end inserted longitudinally and hooked behind the bentportions of the said lips, substantially as set forth.

2.-- The combination of a bar formed with a longitudinal groove, andhaving the lips of the-groove bent inward at intervals formin seats andsn '1 )lemental members having tapering heads which fit the groove andare adapted to be driven longitudinally within the said seats,substantially as set forth.

3. The combination of a .bar formed with a longitudinal groove, andhaving the lips of the grooves bent inward at intervals forming seatswithinclined orconical walls, and supplemental members having headsshaped to fit the seats, substantially as set forth.

1. The combination of a bar formed with opposite longitudinal groovesthe lips of which are bent inward, and a supplemental member looped andpassing from side to side of the bar and having its ends secured behindthe bends of the lips.

5. In a metal reinforcement for concrete, a bar having a series oflateral pockets and stirrup shaped shear rods, each shear rod having itsends bent in the same. direction and inserted in pockets on oppositesides of said bar.

In testimony whereof I ailix my signature in presence of two witnesses.

JOHN F. GOLDING.

JAMES F. Gunner.

